Refrigerator



Aug. 4, 1925. 1,548,056

' C. A. MOORE REFRIGERATOR Filed Aug. l5', 1922:

20 atively large and whereby ready access may i UNiTED Application illed Augu lTo all wlwmdt concern;

Be it known that I, CHARLES citizen of the United St. Paul, in the county of Ramsey an STATES Parral-rr OFFICE.

. CHARLES A. MOORE, 0F

sr PAUL, MINNESOTA.

BEFBIGERATOB.

A. MOORE, a. residing in States,

d .State of Minnesota, have invented a new and useful Refrigerator, of wh la specification.

My invention relates ich the following is to improvements in refrigerators for domestic andother uses.

Recent lng lwith the demand for a developments expensive and eificient storage machines for ice boxes are in small refrigerataccompanied simple, durable, in-

structure for the preservation of commodities under refrigeration afforded by such machines.

One obj ect `supply a refrigerator embo a further object being to named features,

of the present invention 1s to dying the above provide for an arrangement of parts in such a device, wherein the storage space 1s relp be had to the stored articles.

With the foregoing and other objects in view, which description,

will appear 1n the following the' invention resides in the novel combination` and arrangement of parts and in the details of construction herein,- after described and claimed.

In the drawings, Fig. tral, sectional view of bodying my .invent1on;

tional view thereof;

Fig. sectional view taken on the 1 is a verticalcen a refrigerator em- Fig. 2 is an eleva- 3 is a transverse 1 and Fig. 4 is an enlarged sectional view in detail, the same being of Fig. 3.

taken on the line 4.-4

Referring to the drawings, it will be seen that. my, improved refrigerator includes a box structure A having a bottom 10, cylinsuitable. heat insulating wall 11 being formed fitted with as by means of said cover and threaded l of said sidewall.

pending axially of the chamberl b withi structure A includes concentric ai "18 coiled turn upon turn 17 and a pipe about the outer duct16. is a pipethe upper'en doors 14, and ing removably fastened on the sidewall 11 screws 15 reaching throughy each shelf being adapted to revolve like a AA core structure B from the cover 12' and khanging the boit4 materials,pthe sidelwith 'doorways 13 the cover I12 beinto the upper edge ducts 16,

Said outer duct 16 d of whichl is fitted Aof said'd'r'ain pipe 20 is de] line 343 of Fig. f

`A 'binder ring 22,.

seis, 1924. serial No. raam.

and fastened in a central opening in the cover 12. Stopping short o the floor of the chamber b, said duct 16 provides com- The duct 17 is a pipe arranged within'the duct 16, the upper end of said pipe being fitted with radial branches 17*l reaching through the Wall of the duct 16 and affording communication between the upper end of the duct 17 and the upper portion of the chamber b.v The duct` 17 hangs beneaththe lower end of the duct 16, said depending end of said duct 17 being'received in a well 19 formed in the bottom 10 to receivev water of condensation forming within the chamber b and drained to the center of the floor thereof. A drain ipe 20 leading from the lower portion of the chamber b through the bottom 1() is arranged with the upper ing upward into the well 19` and into the lower end of the duct 17. The upper edge )ressed within the well 19 and is considerably smaller in outside diameter than the inside diameter of the duct 17 With the duct 17 fitting over the drain pipe 20, as above described, it

leading downward between the ducts 16, 17

. to the lower turn of the pipe and a return branch 18'h leading upward Ibetween said ducts from the upper turn of said pipe. These pipe branches 18, any suitable refrigerating machine .18b lconnect wit (not ' shown) mounted on the box structure A, or

elsewhere, as may be desired;

I rovide a shelf for each doorway 13, turn-table to present articles thereon in position readily access'ble through its respec- ,tive doorway. A circularpiece of woven wire open at the center thereof'to receive the core structure B constitutes a shelf 21. reinforcing the wire shelf 21 at the margin thereof, su plies a carriage frame tothe underside of w ich are secured lower end of said pipe or end thereof reach- I a number of socket members 23, each eming for structural compactness. Cooled in the ingress duct 16 and egress duct 17 air settles in the duct 16 from the outer atmosphere to the' lower portion of the chamber b and in the duct 17 from the upper portion of Said chamber to the outer atmosphere. Being pre-cooled in its travel through the ingress duct 16 and past the feed branch 18a the air flowing into the chamber b is readily further reduced in temperature by the refrigerant in the turns of the pipe 18 within said chamber. l

Arranging the egress duct 17 within 'the ingress duct 16 and the coils of the pipe 18 outside of said ingress duct 16, provides for the economical use `of the refrigerant in effecting the exhaustionl of air from the chamber The combination'of the water drain pipe 20 with the air duct,17, whereby the former provides a continuation .of the latter for the egress of air from the chamber b is an advantageous feature of the invention.

' Changes in the specific form of my invention, ,e as herein disclosed, may be made within the scope of what is claimed without departing from the spirit ofmyinvention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is: 1. In a refrigerator, a box forming a-provision chamber and comprising a floor, a

cylindrical sidewall and a cover, the sidewall having a doorway therein and a closure for said doorway, a' core structure in said 'box comprising a duct arranged axially of said chamber, said duct communicating with the outer air at its upperend and opening into the lower portion of the -box at its lower end, a pipe for a refrigerant closelycoiled about said duct, the floor of said box having an axial well therein to catch water of condensation, a drain pipe in the bottom gf the box, the upper end thereof reaching upward within the well axially thereof, a\

second duct arranged within and axially of said .rst duct, said second duct communieating at its Iupper end with theupp'er portion of the chamber, the lower end of said duct loosely encircling said upper end `of ward in the well, a second duct communicat ing at its upper end with the upper portion of lthe chamber, the lowerend of said duct loosely encircling said upper end -of said drain pipe, and a pipe for a refrigerant associated with said ducts.

3. In al refrigerator, a structure forming a provision chamber, two upright ducts in said chamber, one duct providing communication between. the outside atmosphere` at the upper portion of the structure and the Iinterior ofthe chamber at the bottom thereof, the other duct'providing` communication between the interior off` the chamber atthe upper portion thereof and the dutside atmosphere at the lower ortion of said structure, a pipe for a re rigerant associated with said ducts, and a ring-likeshelf mounted within said chamber and `adapted to turn about said dnctsand pipe.

` 4. Ina refrigerator, a structure forming aprovision chamber, two concentric ducts arranged axially. within said chamber, the outer duct providing `communication between the outside atmosphere' at the upper .portion of the structure and the interior of the chamber at the bottom. thereof, the inner duct providing communication between the interior of the chamber at the upper portion thereof and the outsideatmosphere at the lower portionof said structure, and a pipe for a refrigerant ,coiled turn upon turn about said outer duct, said pipe having a feed branch leading downward between said ducts to the lowermost turn of said pipe.

5. In a refrigerator,\a structure orming a provision chamber, two upright ducts in said chamber, one within the other, theouter ductproviding communication between the outside atmosphere at the upper portion of the structure and the interior of the chambcr at the bottom thereof,lthe inner( duct providing .communication between the interior of the chamber at the upper 'portlon los thereof and the outside-atmosphere at the lower portion'of saidstructure, and a pipe for a refrigerant coiled aboutsaid outer duct. i

6. In a refrigerator,a box structure form- 'l ing a provisionl chamber, a core structure dependmg from the coverof the box structure and including two c oncentric ducts and a refrigerating pipe coiled about the outer duct, said outer duct providing com# 1,548,056 l vt3 munication between the-oiitside atmosphere structure, and a provision shelf within the at the upper portion of the structure .and box structure, said shelf encircling said core the interior of the chamber at the bottom structure and revoluble about the same. thereof, the inner duct providing communi- In testimony whereof, I have signed my 5 cation between the interior of the chamber name to this specification. c

at the upper portion thereof and the outside atmosphere at the lower portion of said CHARLES A. MOORE. 

